mirror of
https://github.com/debauchee/barrier.git
synced 2024-12-11 23:13:58 +03:00
fee4095624
synergy.cpp and server.cpp into cmd/synergyd as synergyd.cpp. Moved and renamed related files. Moved remaining source files into lib/.... Modified and added makefiles as appropriate. Result is that library files are under lib with each library in its own directory and program files are under cmd with each command in its own directory.
714 lines
18 KiB
C++
714 lines
18 KiB
C++
#include "CXWindowsPrimaryScreen.h"
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#include "CXWindowsScreen.h"
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#include "CXWindowsUtil.h"
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#include "IPrimaryScreenReceiver.h"
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#include "XScreen.h"
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#include "CThread.h"
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#include "CLog.h"
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#include "CStopwatch.h"
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#if defined(X_DISPLAY_MISSING)
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# error X11 is required to build synergy
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#else
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# include <X11/X.h>
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# include <X11/Xutil.h>
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# define XK_MISCELLANY
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# define XK_XKB_KEYS
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# include <X11/keysymdef.h>
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#endif
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//
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// CXWindowsPrimaryScreen
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//
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CXWindowsPrimaryScreen::CXWindowsPrimaryScreen(
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IScreenReceiver* receiver,
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IPrimaryScreenReceiver* primaryReceiver) :
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CPrimaryScreen(receiver),
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m_receiver(primaryReceiver),
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m_window(None)
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{
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m_screen = new CXWindowsScreen(receiver, this);
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}
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CXWindowsPrimaryScreen::~CXWindowsPrimaryScreen()
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{
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assert(m_window == None);
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delete m_screen;
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}
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void
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CXWindowsPrimaryScreen::reconfigure(UInt32)
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{
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// do nothing
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}
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void
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CXWindowsPrimaryScreen::warpCursor(SInt32 x, SInt32 y)
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{
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CDisplayLock display(m_screen);
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// warp mouse
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warpCursorNoFlush(display, x, y);
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// remove all input events before and including warp
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XEvent event;
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while (XCheckMaskEvent(display, PointerMotionMask |
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ButtonPressMask | ButtonReleaseMask |
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KeyPressMask | KeyReleaseMask |
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KeymapStateMask,
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&event)) {
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// do nothing
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}
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// save position as last position
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m_x = x;
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m_y = y;
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}
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KeyModifierMask
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CXWindowsPrimaryScreen::getToggleMask() const
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{
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CDisplayLock display(m_screen);
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// query the pointer to get the keyboard state
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Window root, window;
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int xRoot, yRoot, xWindow, yWindow;
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unsigned int state;
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if (!XQueryPointer(display, m_window, &root, &window,
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&xRoot, &yRoot, &xWindow, &yWindow, &state)) {
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return 0;
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}
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// convert to KeyModifierMask
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KeyModifierMask mask = 0;
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if (state & m_numLockMask) {
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mask |= KeyModifierNumLock;
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}
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if (state & m_capsLockMask) {
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mask |= KeyModifierCapsLock;
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}
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if (state & m_scrollLockMask) {
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mask |= KeyModifierScrollLock;
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}
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return mask;
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}
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bool
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CXWindowsPrimaryScreen::isLockedToScreen() const
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{
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CDisplayLock display(m_screen);
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// query the pointer to get the button state
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Window root, window;
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int xRoot, yRoot, xWindow, yWindow;
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unsigned int state;
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if (XQueryPointer(display, m_window, &root, &window,
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&xRoot, &yRoot, &xWindow, &yWindow, &state)) {
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if ((state & (Button1Mask | Button2Mask | Button3Mask |
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Button4Mask | Button5Mask)) != 0) {
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return true;
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}
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}
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// get logical keyboard state
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char keyMap[32];
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memset(keyMap, 0, sizeof(keyMap));
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XQueryKeymap(display, keyMap);
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// locked if any key is down
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for (unsigned int i = 0; i < sizeof(keyMap); ++i) {
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if (keyMap[i] != 0) {
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return true;
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}
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}
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// not locked
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return false;
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}
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IScreen*
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CXWindowsPrimaryScreen::getScreen() const
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{
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return m_screen;
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}
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void
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CXWindowsPrimaryScreen::onScreensaver(bool activated)
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{
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m_receiver->onScreensaver(activated);
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}
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bool
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CXWindowsPrimaryScreen::onPreDispatch(const CEvent*)
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{
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return false;
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}
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bool
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CXWindowsPrimaryScreen::onEvent(CEvent* event)
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{
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assert(event != NULL);
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XEvent& xevent = event->m_event;
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// handle event
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switch (xevent.type) {
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case CreateNotify:
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{
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// select events on new window
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CDisplayLock display(m_screen);
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selectEvents(display, xevent.xcreatewindow.window);
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}
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return true;
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case MappingNotify:
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// keyboard mapping changed
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updateKeys();
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return true;
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case KeyPress:
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{
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log((CLOG_DEBUG1 "event: KeyPress code=%d, state=0x%04x", xevent.xkey.keycode, xevent.xkey.state));
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const KeyModifierMask mask = mapModifier(xevent.xkey.state);
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const KeyID key = mapKey(&xevent.xkey);
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if (key != kKeyNone) {
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m_receiver->onKeyDown(key, mask);
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if (key == kKeyCapsLock && m_capsLockHalfDuplex) {
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m_receiver->onKeyUp(key, mask | KeyModifierCapsLock);
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}
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else if (key == kKeyNumLock && m_numLockHalfDuplex) {
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m_receiver->onKeyUp(key, mask | KeyModifierNumLock);
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}
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}
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}
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return true;
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case KeyRelease:
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{
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const KeyModifierMask mask = mapModifier(xevent.xkey.state);
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const KeyID key = mapKey(&xevent.xkey);
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if (key != kKeyNone) {
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// check if this is a key repeat by getting the next
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// KeyPress event that has the same key and time as
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// this release event, if any. first prepare the
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// filter info.
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CKeyEventInfo filter;
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filter.m_event = KeyPress;
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filter.m_window = xevent.xkey.window;
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filter.m_time = xevent.xkey.time;
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filter.m_keycode = xevent.xkey.keycode;
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// now check for event
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bool hasPress;
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{
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XEvent xevent2;
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CDisplayLock display(m_screen);
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hasPress = (XCheckIfEvent(display, &xevent2,
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&CXWindowsPrimaryScreen::findKeyEvent,
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(XPointer)&filter) == True);
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}
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if (!hasPress) {
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// no press event follows so it's a plain release
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log((CLOG_DEBUG1 "event: KeyRelease code=%d, state=0x%04x", xevent.xkey.keycode, xevent.xkey.state));
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if (key == kKeyCapsLock && m_capsLockHalfDuplex) {
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m_receiver->onKeyDown(key, mask);
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}
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else if (key == kKeyNumLock && m_numLockHalfDuplex) {
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m_receiver->onKeyDown(key, mask);
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}
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m_receiver->onKeyUp(key, mask);
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}
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else {
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// found a press event following so it's a repeat.
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// we could attempt to count the already queued
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// repeats but we'll just send a repeat of 1.
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// note that we discard the press event.
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log((CLOG_DEBUG1 "event: repeat code=%d, state=0x%04x", xevent.xkey.keycode, xevent.xkey.state));
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m_receiver->onKeyRepeat(key, mask, 1);
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}
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}
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}
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return true;
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case ButtonPress:
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{
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log((CLOG_DEBUG1 "event: ButtonPress button=%d", xevent.xbutton.button));
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const ButtonID button = mapButton(xevent.xbutton.button);
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if (button != kButtonNone) {
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m_receiver->onMouseDown(button);
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}
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}
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return true;
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case ButtonRelease:
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{
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log((CLOG_DEBUG1 "event: ButtonRelease button=%d", xevent.xbutton.button));
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const ButtonID button = mapButton(xevent.xbutton.button);
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if (button != kButtonNone) {
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m_receiver->onMouseUp(button);
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}
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else if (xevent.xbutton.button == 4) {
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// wheel forward (away from user)
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m_receiver->onMouseWheel(120);
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}
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else if (xevent.xbutton.button == 5) {
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// wheel backward (toward user)
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m_receiver->onMouseWheel(-120);
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}
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}
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return true;
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case MotionNotify:
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{
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log((CLOG_DEBUG2 "event: MotionNotify %d,%d", xevent.xmotion.x_root, xevent.xmotion.y_root));
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// compute motion delta (relative to the last known
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// mouse position)
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SInt32 x = xevent.xmotion.x_root - m_x;
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SInt32 y = xevent.xmotion.y_root - m_y;
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// save position to compute delta of next motion
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m_x = xevent.xmotion.x_root;
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m_y = xevent.xmotion.y_root;
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if (xevent.xmotion.send_event) {
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// we warped the mouse. discard events until we
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// find the matching sent event. see
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// warpCursorNoFlush() for where the events are
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// sent. we discard the matching sent event and
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// can be sure we've skipped the warp event.
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CDisplayLock display(m_screen);
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do {
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XMaskEvent(display, PointerMotionMask, &xevent);
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} while (!xevent.xmotion.send_event);
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}
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else if (!isActive()) {
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// motion on primary screen
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m_receiver->onMouseMovePrimary(m_x, m_y);
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}
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else {
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// motion on secondary screen. warp mouse back to
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// center.
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//
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// my lombard (powerbook g3) running linux and
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// using the adbmouse driver has two problems:
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// first, the driver only sends motions of +/-2
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// pixels and, second, it seems to discard some
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// physical input after a warp. the former isn't a
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// big deal (we're just limited to every other
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// pixel) but the latter is a PITA. to work around
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// it we only warp when the mouse has moved more
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// than s_size pixels from the center.
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static const SInt32 s_size = 32;
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if (xevent.xmotion.x_root - m_xCenter < -s_size ||
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xevent.xmotion.x_root - m_xCenter > s_size ||
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xevent.xmotion.y_root - m_yCenter < -s_size ||
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xevent.xmotion.y_root - m_yCenter > s_size) {
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CDisplayLock display(m_screen);
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warpCursorNoFlush(display, m_xCenter, m_yCenter);
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}
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// send event if mouse moved. do this after warping
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// back to center in case the motion takes us onto
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// the primary screen. if we sent the event first
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// in that case then the warp would happen after
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// warping to the primary screen's enter position,
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// effectively overriding it.
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if (x != 0 || y != 0) {
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m_receiver->onMouseMoveSecondary(x, y);
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}
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}
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}
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return true;
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}
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return false;
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}
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SInt32
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CXWindowsPrimaryScreen::getJumpZoneSize() const
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{
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return 1;
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}
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void
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CXWindowsPrimaryScreen::onPreMainLoop()
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{
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assert(m_window != None);
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}
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void
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CXWindowsPrimaryScreen::onPreOpen()
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{
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assert(m_window == None);
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}
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void
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CXWindowsPrimaryScreen::onPostOpen()
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{
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// get cursor info
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m_screen->getCursorPos(m_x, m_y);
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m_screen->getCursorCenter(m_xCenter, m_yCenter);
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// check for peculiarities
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// FIXME -- may have to get these from some database
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m_numLockHalfDuplex = false;
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m_capsLockHalfDuplex = false;
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// m_numLockHalfDuplex = true;
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// m_capsLockHalfDuplex = true;
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}
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void
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CXWindowsPrimaryScreen::onPreEnter()
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{
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assert(m_window != None);
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}
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void
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CXWindowsPrimaryScreen::onPreLeave()
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{
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assert(m_window != None);
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}
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void
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CXWindowsPrimaryScreen::onEnterScreenSaver()
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{
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CDisplayLock display(m_screen);
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// set keyboard focus to root window. the screensaver should then
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// pick up key events for when the user enters a password to unlock.
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XSetInputFocus(display, PointerRoot, PointerRoot, CurrentTime);
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}
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void
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CXWindowsPrimaryScreen::createWindow()
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{
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assert(m_window == None);
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// get size of screen
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SInt32 x, y, w, h;
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m_screen->getShape(x, y, w, h);
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// grab window attributes. this window is used to capture user
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// input when the user is focused on another client. don't let
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// the window manager mess with it.
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XSetWindowAttributes attr;
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attr.event_mask = PointerMotionMask |
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ButtonPressMask | ButtonReleaseMask |
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KeyPressMask | KeyReleaseMask |
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KeymapStateMask | PropertyChangeMask;
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attr.do_not_propagate_mask = 0;
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attr.override_redirect = True;
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attr.cursor = m_screen->getBlankCursor();
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{
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// create the grab window
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CDisplayLock display(m_screen);
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m_window = XCreateWindow(display, m_screen->getRoot(),
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x, y, w, h, 0, 0,
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InputOnly, CopyFromParent,
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CWDontPropagate | CWEventMask |
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CWOverrideRedirect | CWCursor,
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&attr);
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if (m_window == None) {
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throw XScreenOpenFailure();
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}
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log((CLOG_DEBUG "window is 0x%08x", m_window));
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// start watching for events on other windows
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selectEvents(display, m_screen->getRoot());
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}
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// tell generic screen about the window
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m_screen->setWindow(m_window);
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}
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void
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CXWindowsPrimaryScreen::destroyWindow()
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{
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// display can be NULL if the server unexpectedly disconnected
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if (m_window != None) {
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m_screen->setWindow(None);
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CDisplayLock display(m_screen);
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if (display != NULL) {
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XDestroyWindow(display, m_window);
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}
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m_window = None;
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}
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}
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bool
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CXWindowsPrimaryScreen::showWindow()
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{
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assert(m_window != None);
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CDisplayLock display(m_screen);
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// raise and show the input window
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XMapRaised(display, m_window);
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// grab the mouse and keyboard. keep trying until we get them.
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// if we can't grab one after grabbing the other then ungrab
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// and wait before retrying. give up after s_timeout seconds.
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static const double s_timeout = 1.0;
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int result;
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CStopwatch timer;
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do {
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// keyboard first
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do {
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result = XGrabKeyboard(display, m_window, True,
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GrabModeAsync, GrabModeAsync, CurrentTime);
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assert(result != GrabNotViewable);
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if (result != GrabSuccess) {
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log((CLOG_DEBUG2 "waiting to grab keyboard"));
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CThread::sleep(0.05);
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if (timer.getTime() >= s_timeout) {
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log((CLOG_DEBUG2 "grab keyboard timed out"));
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XUnmapWindow(display, m_window);
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return false;
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}
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}
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} while (result != GrabSuccess);
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log((CLOG_DEBUG2 "grabbed keyboard"));
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// now the mouse
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result = XGrabPointer(display, m_window, True, 0,
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GrabModeAsync, GrabModeAsync,
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m_window, None, CurrentTime);
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assert(result != GrabNotViewable);
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if (result != GrabSuccess) {
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// back off to avoid grab deadlock
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XUngrabKeyboard(display, CurrentTime);
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log((CLOG_DEBUG2 "ungrabbed keyboard, waiting to grab pointer"));
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CThread::sleep(0.05);
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if (timer.getTime() >= s_timeout) {
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log((CLOG_DEBUG2 "grab pointer timed out"));
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XUnmapWindow(display, m_window);
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return false;
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}
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}
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} while (result != GrabSuccess);
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log((CLOG_DEBUG1 "grabbed pointer and keyboard"));
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return true;
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}
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void
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CXWindowsPrimaryScreen::hideWindow()
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{
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CDisplayLock display(m_screen);
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// unmap the grab window. this also ungrabs the mouse and keyboard.
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XUnmapWindow(display, m_window);
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}
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void
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CXWindowsPrimaryScreen::warpCursorToCenter()
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{
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warpCursor(m_xCenter, m_yCenter);
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}
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void
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CXWindowsPrimaryScreen::warpCursorNoFlush(
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Display* display, SInt32 x, SInt32 y)
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{
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assert(display != NULL);
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assert(m_window != None);
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// send an event that we can recognize before the mouse warp
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XEvent eventBefore;
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eventBefore.type = MotionNotify;
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eventBefore.xmotion.display = display;
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eventBefore.xmotion.window = m_window;
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eventBefore.xmotion.root = m_screen->getRoot();
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eventBefore.xmotion.subwindow = m_window;
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eventBefore.xmotion.time = CurrentTime;
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eventBefore.xmotion.x = x;
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eventBefore.xmotion.y = y;
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eventBefore.xmotion.x_root = x;
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eventBefore.xmotion.y_root = y;
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eventBefore.xmotion.state = 0;
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eventBefore.xmotion.is_hint = False;
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eventBefore.xmotion.same_screen = True;
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XEvent eventAfter = eventBefore;
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XSendEvent(display, m_window, False, 0, &eventBefore);
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// warp mouse
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XWarpPointer(display, None, m_screen->getRoot(), 0, 0, 0, 0, x, y);
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// send an event that we can recognize after the mouse warp
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XSendEvent(display, m_window, False, 0, &eventAfter);
|
|
XSync(display, False);
|
|
|
|
log((CLOG_DEBUG2 "warped to %d,%d", x, y));
|
|
}
|
|
|
|
void
|
|
CXWindowsPrimaryScreen::selectEvents(Display* display, Window w) const
|
|
{
|
|
// ignore errors while we adjust event masks. windows could be
|
|
// destroyed at any time after the XQueryTree() in doSelectEvents()
|
|
// so we must ignore BadWindow errors.
|
|
CXWindowsUtil::CErrorLock lock(display);
|
|
|
|
// adjust event masks
|
|
doSelectEvents(display, w);
|
|
}
|
|
|
|
void
|
|
CXWindowsPrimaryScreen::doSelectEvents(Display* display, Window w) const
|
|
{
|
|
// we want to track the mouse everywhere on the display. to achieve
|
|
// that we select PointerMotionMask on every window. we also select
|
|
// SubstructureNotifyMask in order to get CreateNotify events so we
|
|
// select events on new windows too.
|
|
//
|
|
// note that this can break certain clients due a design flaw of X.
|
|
// X will deliver a PointerMotion event to the deepest window in the
|
|
// hierarchy that contains the pointer and has PointerMotionMask
|
|
// selected by *any* client. if another client doesn't select
|
|
// motion events in a subwindow so the parent window will get them
|
|
// then by selecting for motion events on the subwindow we break
|
|
// that client because the parent will no longer get the events.
|
|
|
|
// FIXME -- should provide some workaround for event selection
|
|
// design flaw. perhaps only select for motion events on windows
|
|
// that already do or are top-level windows or don't propagate
|
|
// pointer events. or maybe an option to simply poll the mouse.
|
|
|
|
// we don't want to adjust our grab window
|
|
if (w == m_window) {
|
|
return;
|
|
}
|
|
|
|
// select events of interest. do this before querying the tree so
|
|
// we'll get notifications of children created after the XQueryTree()
|
|
// so we won't miss them.
|
|
XSelectInput(display, w, PointerMotionMask | SubstructureNotifyMask);
|
|
|
|
// recurse on child windows
|
|
Window rw, pw, *cw;
|
|
unsigned int nc;
|
|
if (XQueryTree(display, w, &rw, &pw, &cw, &nc)) {
|
|
for (unsigned int i = 0; i < nc; ++i) {
|
|
doSelectEvents(display, cw[i]);
|
|
}
|
|
XFree(cw);
|
|
}
|
|
}
|
|
|
|
KeyModifierMask
|
|
CXWindowsPrimaryScreen::mapModifier(unsigned int state) const
|
|
{
|
|
// FIXME -- should be configurable
|
|
KeyModifierMask mask = 0;
|
|
if (state & ShiftMask)
|
|
mask |= KeyModifierShift;
|
|
if (state & LockMask)
|
|
mask |= KeyModifierCapsLock;
|
|
if (state & ControlMask)
|
|
mask |= KeyModifierControl;
|
|
if (state & Mod1Mask)
|
|
mask |= KeyModifierAlt;
|
|
if (state & Mod2Mask)
|
|
mask |= KeyModifierNumLock;
|
|
if (state & Mod4Mask)
|
|
mask |= KeyModifierMeta;
|
|
if (state & Mod5Mask)
|
|
mask |= KeyModifierScrollLock;
|
|
return mask;
|
|
}
|
|
|
|
KeyID
|
|
CXWindowsPrimaryScreen::mapKey(XKeyEvent* event) const
|
|
{
|
|
CDisplayLock display(m_screen);
|
|
|
|
// convert to a keysym
|
|
// FIXME -- we're not properly handling unicode
|
|
KeySym keysym;
|
|
char dummy[1];
|
|
XLookupString(event, dummy, 0, &keysym, NULL);
|
|
|
|
// convert key
|
|
switch (keysym & 0xffffff00) {
|
|
case 0x0000:
|
|
// Latin-1
|
|
return static_cast<KeyID>(keysym);
|
|
|
|
case 0xfe00:
|
|
// ISO 9995 Function and Modifier Keys
|
|
if (keysym == XK_ISO_Left_Tab) {
|
|
return kKeyLeftTab;
|
|
}
|
|
return kKeyNone;
|
|
|
|
case 0xff00:
|
|
// MISCELLANY
|
|
return static_cast<KeyID>(keysym - 0xff00 + 0xef00);
|
|
|
|
default:
|
|
// FIXME -- support unicode characters
|
|
return kKeyNone;
|
|
}
|
|
}
|
|
|
|
ButtonID
|
|
CXWindowsPrimaryScreen::mapButton(unsigned int button) const
|
|
{
|
|
// FIXME -- should use button mapping?
|
|
if (button >= 1 && button <= 3) {
|
|
return static_cast<ButtonID>(button);
|
|
}
|
|
else {
|
|
return kButtonNone;
|
|
}
|
|
}
|
|
|
|
void
|
|
CXWindowsPrimaryScreen::updateKeys()
|
|
{
|
|
CDisplayLock display(m_screen);
|
|
|
|
// get modifier map from server
|
|
XModifierKeymap* keymap = XGetModifierMapping(display);
|
|
|
|
// initialize
|
|
m_numLockMask = 0;
|
|
m_capsLockMask = 0;
|
|
m_scrollLockMask = 0;
|
|
|
|
// set keycodes and masks
|
|
for (unsigned int i = 0; i < 8; ++i) {
|
|
const unsigned int bit = (1 << i);
|
|
for (int j = 0; j < keymap->max_keypermod; ++j) {
|
|
KeyCode keycode = keymap->modifiermap[i *
|
|
keymap->max_keypermod + j];
|
|
|
|
// note toggle modifier bits
|
|
const KeySym keysym = XKeycodeToKeysym(display, keycode, 0);
|
|
if (keysym == XK_Num_Lock) {
|
|
m_numLockMask |= bit;
|
|
}
|
|
else if (keysym == XK_Caps_Lock) {
|
|
m_capsLockMask |= bit;
|
|
}
|
|
else if (keysym == XK_Scroll_Lock) {
|
|
m_scrollLockMask |= bit;
|
|
}
|
|
}
|
|
}
|
|
|
|
XFreeModifiermap(keymap);
|
|
}
|
|
|
|
Bool
|
|
CXWindowsPrimaryScreen::findKeyEvent(Display*, XEvent* xevent, XPointer arg)
|
|
{
|
|
CKeyEventInfo* filter = reinterpret_cast<CKeyEventInfo*>(arg);
|
|
return (xevent->type == filter->m_event &&
|
|
xevent->xkey.window == filter->m_window &&
|
|
xevent->xkey.time == filter->m_time &&
|
|
xevent->xkey.keycode == filter->m_keycode) ? True : False;
|
|
}
|